161569265

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{2539}}^1$

素因数の和:2657

約数の個数: 32

約数和(自身を含む): 230428800

約数和(自身を除く): 68859535

約数列:

[1, 5, 11, 13, 55, 65, 89, 143, 445, 715, 979, 1157, 2539, 4895, 5785, 12695, 12727, 27929, 33007, 63635, 139645, 165035, 225971, 363077, 1129855, 1815385, 2485681, 2937623, 12428405, 14688115, 32313853, 161569265]

約数ペア:

[(1, 161569265), (5, 32313853), (11, 14688115), (13, 12428405), (55, 2937623), (65, 2485681), (89, 1815385), (143, 1129855), (445, 363077), (715, 225971), (979, 165035), (1157, 139645), (2539, 63635), (4895, 33007), (5785, 27929), (12695, 12727)]